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Finding the Fourth Proportional to 78,272.46, 108,015.39 and 42,462.36

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Solution

The fourth proportional to 78,272.46, 108,015.39 and 42,462.36 is: 58,597.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,272.46 : 108,015.39 = 42,462.36 : x
  2. Step 2: Convert to fraction form
    78,272.46/108,015.39 = 42,462.36/x
  3. Step 3: Cross multiply
    78,272.46x = 108,015.39 × 42,462.36
  4. Step 4: Simplify right side
    78,272.46x = 4,586,588,375.72
  5. Step 5: Solve for x
    x = 4,586,588,375.72/78,272.46
  6. Step 6: Final answer
    x = 58,597.73

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